Best PCB Surface Finish: How to Choose the Right Type for Your Project in 2025
Learn how to select the ideal PCB surface finish for reliability, solderability, cost, and fine‑pitch assembly. Compare HASL, ENIG, OSP, Immersion Silver, and more for industrial and export projects. What Is a PCB Surface Finish and Why It Matters A PCB surface finish is a protective layer applied to exposed copper traces to prevent oxidation,…